Question

7.3 Why do we have standard time? Answer in about 40 words.​

Answer 1

Answer:

The time of a place depends on the longitude that passes through it. Therefore, the standard time for each country is usually taken as the time of the central meridian that passes through it. ... Thus, we need a standard meridian for the country. In India 82 ½ °E longitude determines the standard time.

Explanation:

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Answer 2

Answer:

The standard time for each country is usually taken as the time of the Central Meridian that passes through it. India has a vast longitudinal Extent. Since many meridian passes through it, it is important to adopt the local time of one central meridian of a country as the Standard time of the country.

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